Comparative energy analysis of a load sensing system and a zonal hydraulics for a 9-tonne excavator

Paolo Casoli, Fabio Scolari, Tatiana Minav, Massimo Rundo

Research output: Contribution to journalArticleScientificpeer-review

3 Citations (Scopus)
11 Downloads (Pure)


With the rising demand for energy efficiency, displacement-controlled or so-called pumpcontrolled systems have become an attractive research topic for applications in construction machinery and other off-road vehicles. Pump-controlled systems can be implemented with electro-hydrostatic actuators as electro-hydraulic zones, which are located next to the end actuator as a replacement for the traditional valve-controlled hydraulic actuation systems. In this paper a 9-tonne class excavator is utilized as a study case. A mathematical model of the conventional machine, validated with tests carried out on both the excavator and the single hydraulic components, was previously developed within the Simcenter AMESim

Original languageEnglish
Article number39
Number of pages19
Issue number2
Publication statusPublished - 2020
Publication typeA1 Journal article-refereed


  • Electro-hydrostatic actuator
  • Energy saving
  • Excavator
  • Load sensing
  • Pump-controlled systems
  • Zonal hydraulics

Publication forum classification

  • Publication forum level 1

ASJC Scopus subject areas

  • Control and Systems Engineering
  • Control and Optimization


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